sqlplus error on select from external table: ORA-29913: error in executing ODCIEXTTABLEOPEN callout

Question

I have setup a simple Oracle external table test that I (alongside a DBA and Unix admin) can\'t get to work.

The following is based on Oracle\'s External Tables Conc

Answer 1

When you want to create an external_table, all field's name must be written in UPPERCASE.

Done.